SCIENTIFIC RESEARCH DEPARTMENT OFLASER METROLOGY AND RADIOMETRY

Conduction of fundamental and applied research in the field of laser radiometry

Heads

Head of Department Mikhail Ulanovskiy Doctor

Head of Scientific Research LaboratoryAnatoliy Liberman Doctor

Deputy Head of DepartmenVladimir Belousov

Main activities

Fundamental and applied scientific research and research and development works in the field of metrology for the purpose of developing methods, creating and improving the precision measuring instruments used in laser metrology and radiometry, measurement of continuous laser radiation power and energy of pulsed laser radiation, energy density distribution, wavelength and duration of the laser radiation pulse

Development of standards of energy and space-energy quantity units characterizing laser radiation

Main objectives

Development of instruments for measuring power, energy, pulse duration, and other quality parameters of the laser beam in different time frames (microsecond, nanosecond and picosecond)

Supply of laser watt- and joulemeters, instruments for measuring the quality parameters of laser beam

Development and delivery of working standards designed for verification and calibration of measuring instruments of domestic and foreign production in the field of laser radiometry

Support and maintenance of state primary standards of energy and space-energy quantity units characterizing laser radiation

Transmission of the reproductive unit sizes to the working standards supervised by the bodies of state metrological service and metrological services of state authorities and legal entities

Development and improvement of state and working standards, working measuring instruments according to the assigned types and subtypes of measurements

Testing, verification and calibration of measuring instruments according to the assigned types and subtypes of measurements

Participation in the development of regulatory technical documentation on the methods and means of measuring instrument verification; metrological examination of measurement techniques and tests

Analysis of the uniformity measurement system according to the assigned types and subtypes of measurements and the development of proposals on its improvement, considering foreign achievements

Department Standard base

GET 187-2010State primary standard of units of energy, energy density distribution, pulse duration and wavelength of laser radiation (SPS) reproduces, maintains and transmits the sizes of units to appropriate working standards.

State primary standard of the average laser power unit

GET 28-2009State standard of the average laser power unit provides the reproduction of the average laser power unit within the range from 5x10-3 to 2.0 W and at wavelengths of 0.532; 1.064 and 10.6 micrometers. GOST 8.275-2007 State primary standard went through international comparisons and has calibration and measurement capabilities for measuring laser power at wavelengths of 0.532, 1.064 and 10.6 micrometers within the dynamic range from 0.02 to 2 W, approved by the International Bureau of Weights and Measures.

Delivered equipment

Secondary standard of REE unit of pulsed laser radiation energy

State Register № 27394-04The standard is designed for verification of instruments for measuring pulsed laser radiation energy in nanosecond and picosecond duration ranges

State primary standard of the average laser power unit

GET 28-2009State standard of the average laser power unit provides the reproduction of the average laser power unit within the range from 5x10-3 to 2.0 W and at wavelengths of 0.532; 1.064 and 10.6 micrometers. GOST 8.275-2007 State primary standard went through international comparisons and has calibration and measurement capabilities for measuring laser power at wavelengths of 0.532, 1.064 and 10.6 micrometers within the dynamic range from 0.02 to 2 W, approved by the International Bureau of Weights and Measures.

State Register № 19478-00Laser intensity distribution formed on a special screen is fixed by monochrome television camera and with the help of RITS822 signal recorder transduced to digital form and integrated into computer. According to the operational software, the computer (laptop, which is a part of SIPH-1) provides processing and display of information in different variants selected by the operator. For the pulse duration of at least 100 ms all parameters can be measured with a frequency of 50 Hz

Laser joulemeters

State Register № 19477-00TThe laser joulemeters are used for measuring energy in the equipment containing pulsed lasers, such as medical devices and apparatuses; laser material processing machines; equipment for thin film evaporation; laser photochemistry and spectroscopy devices; weapon systems and military equipment, etc.

Information-measuring system for diagnosis of pulsed laser beams

The system is designed for diagnosing radiation parameters of multichannel pulsed laser systems.

Analyzer of steel and cast iron composition

The device can be used in secondary metallurgy for measuring the quantitative composition of steel and cast iron, determination of their brands, as well as the input control at the machine-building enterprises.

Developed methods

Method of calibration of instruments for measuring the average power of laser radiation